org.springframework.data.elasticsearch.client.NodeClientFactoryBean.java Source code

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Here is the source code for org.springframework.data.elasticsearch.client.NodeClientFactoryBean.java

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/*
 * Copyright 2015-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.elasticsearch.client;

import static java.util.Arrays.*;

import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;

import org.elasticsearch.client.Client;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.logging.LogConfigurator;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.node.InternalSettingsPreparer;
import org.elasticsearch.node.Node;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.transport.Netty4Plugin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.StringUtils;

/**
 * NodeClientFactoryBean
 *
 * @author Rizwan Idrees
 * @author Mohsin Husen
 * @author Ilkang Na
 */
public class NodeClientFactoryBean implements FactoryBean<Client>, InitializingBean, DisposableBean {

    private static final Logger logger = LoggerFactory.getLogger(NodeClientFactoryBean.class);
    private boolean local;
    private boolean enableHttp;
    private String clusterName;
    private NodeClient nodeClient;
    private String pathData;
    private String pathHome;
    private String pathConfiguration;

    public static class TestNode extends Node {

        public TestNode(Settings preparedSettings, Collection<Class<? extends Plugin>> classpathPlugins) {

            super(InternalSettingsPreparer.prepareEnvironment(preparedSettings, null), classpathPlugins, false);
        }

        protected void registerDerivedNodeNameWithLogger(String nodeName) {
            try {
                LogConfigurator.setNodeName(nodeName);
            } catch (Exception e) {
                // nagh - just forget about it
            }
        }
    }

    NodeClientFactoryBean() {
    }

    public NodeClientFactoryBean(boolean local) {
        this.local = local;
    }

    @Override
    public NodeClient getObject() throws Exception {
        return nodeClient;
    }

    @Override
    public Class<? extends Client> getObjectType() {
        return NodeClient.class;
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

    @Override
    public void afterPropertiesSet() throws Exception {

        nodeClient = (NodeClient) new TestNode(
                Settings.builder().put(loadConfig()).put("transport.type", "netty4").put("http.type", "netty4")
                        .put("path.home", this.pathHome).put("path.data", this.pathData)
                        .put("cluster.name", this.clusterName).put("node.max_local_storage_nodes", 100).build(),
                asList(Netty4Plugin.class)).start().client();
    }

    private Settings loadConfig() throws IOException {
        if (!StringUtils.isEmpty(pathConfiguration)) {
            InputStream stream = getClass().getClassLoader().getResourceAsStream(pathConfiguration);
            if (stream != null) {
                return Settings.builder().loadFromStream(pathConfiguration,
                        getClass().getClassLoader().getResourceAsStream(pathConfiguration), false).build();
            }
            logger.error(String.format("Unable to read node configuration from file [%s]", pathConfiguration));
        }
        return Settings.builder().build();
    }

    public void setLocal(boolean local) {
        this.local = local;
    }

    public void setEnableHttp(boolean enableHttp) {
        this.enableHttp = enableHttp;
    }

    public void setClusterName(String clusterName) {
        this.clusterName = clusterName;
    }

    public void setPathData(String pathData) {
        this.pathData = pathData;
    }

    public void setPathHome(String pathHome) {
        this.pathHome = pathHome;
    }

    public void setPathConfiguration(String configuration) {
        this.pathConfiguration = configuration;
    }

    @Override
    public void destroy() throws Exception {
        try {
            logger.info("Closing elasticSearch  client");
            if (nodeClient != null) {
                nodeClient.close();
            }
        } catch (final Exception e) {
            logger.error("Error closing ElasticSearch client: ", e);
        }
    }
}